SOLUTIONS GRADED A+ PREMIUM
RESOURCE
●● class 1 substance
Answer: ozone depleting chemical with an ozone depletion potential
greater than .2 (eg CFCs)
●● class 2 substance
Answer: ozone depleting chemical with an ozone depletion potential less
than .2 (eg HCFCs)
●● CFCs
Answer: Chlorofluorocarbons, eg R-12 (CFC-12)
●● HCFCs
Answer: Hydrochlorofluorocarbons, eg R-22 (HCFC-22)
●● HFCs
Answer: hydrofluorocarbons, eg R-134a (HFC-134a)
●● HFOs